Driveway - Slag Metal

**scrap1025** · 06-14-2013, 05:31 PM

I live in rural NE Florida and a coworker was talking about using slag metal (by the truckload) as a driveway instead of limerock or crushcrete.

Has anyone had any experience on how well this holds up? I had some lime rock delivered 8 years ago but it's pretty much gone now (the earth ate it).

They want $500 delivered for a dump truck full.

**Bear** · 06-14-2013, 06:24 PM

The earth will keep eating whatever you put on it. That limestone(a primary ingredient of cement) will help harden the ground around it, but in time it kinda falls apart, then it's time for another layer

I kinda doubt you having easy access to shale there, but if you do, it makes a great top layer

ps, a dumptruck can come in many different sizes, best to go by how many yards it is

**mikenofx2000** · 06-14-2013, 07:07 PM

I cant speak for all slag but being from Pittsburgh there are many slag driveways near my house that have been there for years. All the old timers say that the blast furnace slag was the best because it is real jagged and locks together with very little compaction. Check this link it has a few descriptions of different types. This company is near my house if i look out my upstairs window i see a slag pile 10 stories high. Home Page

Hope this helps,
Mike

**NHscrapman** · 06-14-2013, 07:10 PM

The old driveways in my hometown were mostly slag from the mills. as kids we called it lava rock

**ginofrater** · 06-14-2013, 07:25 PM

From the Internet

What is Driveway Slag?
Driveway Slag is a co-product produced at the steelmill. It varies in size with the largest being about 1 1/4" in size. The smallest is granular and even sometimes powder like.

Slag is a partially vitreous by-product of smelting ore to separate the metal fraction from the unwanted fraction. It can usually be considered to be a mixture of metal oxides and silicon dioxide.

See and read more here=Driveway Slag

I hope it helps.